unreal

adj. not real or existing in the physical world; like a dream or a story.

adj. lacking existence in reality; existing only in the imagination or as a theoretical concept.

“The bright colors in the dream felt so unreal when I woke up.”

“The landscape had an unreal quality, as if the mountains had been painted onto the horizon rather than formed by nature.”

adj. so good, impressive, or strange that you can hardly believe it is true.

adj. extraordinary or incredible to an extreme degree; often used to express high praise or shock.

“The view from the top of the mountain was absolutely unreal.”

“The athlete's performance during the final minutes of the game was simply unreal, leaving the commentators and the crowd in total disbelief.”

Informal